Datasheet > RT4822

RT4822

更新时间： 2024-10-03 17:01:59

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
28页	1105K
描述
Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency and I2C Flexible Control

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RT4822 数据手册

RT4822

Wide Input and Ultra-Low Quiescent Current Boost Converter

with High Efficiency and I²C Flexible Control

Features

General Description

⚫ Ultra-Low Operating Quiescent Current

⚫ Quickly Start-Up Time (< 400sec)

⚫ 3 Few External Components: 1H Inductor, 0402

Case Size Input and 0603 Case Size Output Case

Size Capacitors

The RT4822 integrates built-in power transistors,

synchronous rectification, and low supply current to

provide a compact solution for systems using advanced

Li-Ion battery chemistries. The RT4822 is capable of

supplying significant energy when the battery voltage is

lower than the required voltage for system power ICs.

⚫ Input Voltage Range: 1.8V to 5.5V

⚫ Programmable Output Voltage from 3.15V to

5.5V with 25mV/Step

The RT4822 is a boost regulator designed to provide a

minimum output voltage from a single-cell Li-Ion battery,

even when the battery voltage is below system

minimum. In boost mode, output voltage regulation is

guaranteed to a maximum load current of 1500mA.

Quiescent current in shutdown mode is less than 1A,

which maximizes the battery life. The regulator

transitions smoothly between bypass and normal boost

mode. The device can be forced into bypass mode to

reduce quiescent current.

⚫ Support V > V

Operation

OUT

⚫ Default Boost Output Voltage Setting: V

= 5V

OUT

⚫ Maximum Continuous Load Current: 1.5A at V

> 3.6V Boosting V

to 5V

OUT

⚫ Up to 93% Efficiency

⚫ Internal Synchronous Rectifier

⚫ Overcurrent Protection

⚫ Cycle by Cycle Current Limit

⚫ Undervoltage Protection

The RT4822 is available in the WL-CSP-9B 1.3x1.2

(BSC) package.

⚫ Overvoltage Protection

⚫ Short-Circuit Protection

⚫ Over-Temperature Protection

⚫ Small WL-CSP-9B 1.3x1.2 (BSC) Package

Applications

⚫ NFC Device Power Supply

⚫ USB Charging Ports

⚫ PC Accessory Application (Keyboard, Mouse...etc.)

⚫ TWS (True Wireless Stereo) Hall Sensor

⚫ Gaming Device Sensor

Simplified Application Circuit

RT4822

VOUT

OUT

VIN

SCL

SDA

GND

is a registered trademark of Richtek Technology Corporation.

DS4822-00

November 2022

www.richtek.com

12 3 4 5 6 7...28

中文翻译

下载PDF

与RT4822相关器件

型号	品牌	获取价格	描述	数据表
RT4823	RICHTEK	获取价格	Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency
RT4823M	RICHTEK	获取价格	Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency
RT4823N	RICHTEK	获取价格	Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency
RT4831A	RICHTEK	获取价格	Four-Channel LCD Backlight Driver with Integrated Bias Power
RT4832	RICHTEK	获取价格	Sub PMIC with Dual-Output Boost Converter with I2C Interface for Flash LED and Backlight L
RT4832A	RICHTEK	获取价格	Sub PMIC with Dual-Output Boost Converter
RT4832AWSC	RICHTEK	获取价格	Sub PMIC with Dual-Output Boost Converter
RT4841	RICHTEK	获取价格	5A Synchronous Boost Converter with Output Isolation MOS
RT4N631C	ISAHAYA	获取价格	TRANSISTOR WITH RESISTOR
RT4S	ETC	获取价格	REMOVAL TOOL

与RT4822相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

38
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

32
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

28
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

40

产品中心

服务支持

精选活动

关于我们

帮助中心

RT4822

RT4822 数据手册

与RT4822相关器件

与RT4822相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

RT4822

RT4822 数据手册

与RT4822相关器件

与RT4822相关文章

您还可以找

您在本页遇到什么问题？